Ontario, CA Sign Regulations: Holiday Displays (2026)

Residential holiday decorations and lighting in Ontario are generally allowed without a sign permit because they are temporary, non-commercial seasonal displays under the Ontario Sign Code (OMC Chapter 9). However, displays must not block driver sight distance at driveways or intersections under California Vehicle Code 22500 and OMC Chapter 8, and cannot encroach into the public right-of-way or onto sidewalks in a way that blocks ADA accessible paths of travel. Electrical installations for holiday lighting must comply with the California Electrical Code (2022 CEC Article 590), meaning outdoor-rated extension cords, GFCI protection, and temporary circuits no longer than 90 days. Inflatable characters and projectors that spill bright light into neighboring bedrooms may trigger nuisance complaints under OMC Chapter 30 if maintained beyond mid-January. Commercial property holiday displays in the window or along storefronts are typically allowed but may not exceed 25 percent of the window area dedicated to signage. HOAs can impose stricter limits through CCRs, commonly limiting decorations to the 30-day window before and after a holiday.